Machine Swage Tool Required, Thread 1/4"-28 Fine Right Hand 6420S - A) 4-1/2” B) 4-27/32” C) 1/8” Wire D) 1/2" , Thread 1/4-28 Fine Right Hand 6422S - A) 5-7/8” B) 5-27/32” C) 3/16” Wire D) 9/16”, Thread 5/16- 24 Fine Right Hand 316 Stainless Steel Cast, 316 Stainless Steel Cast Lifeline Pelican Hook. Sold By Each.